Apparatus and method for shielding magnetic heads during a sputt

Details Apparatus and method for shielding magnetic heads during a sputt Apparatus and method for shielding magnetic heads during a sputt

1983-11-28

1985-08-20

Metz, Andrew H.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

118504, 118720, 204298, C23C 1500

Patent

active

045362700

ABSTRACT:
In the process for manufacturing the ferrite cores used in magnetic data transducer heads, a novel stacking of the bars from which the core pieces are cut allows these bars to mutually shield each other's back gap areas during the alumina sputtering step which sets the lengths of the read/write flux gaps. An inexpensive fixture supports the bars in the desired position during the sputtering operation.

REFERENCES:
patent: 3458926 (1969-08-01), Maissel et al.
patent: 3678892 (1972-07-01), Fairchild
patent: 4170032 (1979-10-01), Yokoyama et al.
patent: 4249301 (1981-02-01), Cartwright
patent: 4298899 (1981-11-01), Argumedo et al.
patent: 4322277 (1982-03-01), Opresko
patent: 4451344 (1984-05-01), Burkhart et al.
IBM Tech. Discl. Bull., vol. 20, No. 8, p. 3233, Jan. 1979, Magnetic Head with Sputtered Ceramic Gap.

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